Automatically-controlled fastener forming and driving machine



March 23 1926. 1,578,015

E. CRAlG AUTOMATICALLY don-momma FASTENER FORMING AND ori inal FiledAugust 23 1920 7 Sheets-Sheet 2 DRIVING MACHINE March 23,1926. 1,578,015

E. CRAIG AUTOMATICALLY com-gonna FASTENEH FORMING AND mu'vme MACHINEFile August 9 '7 Sheets-Sheet s Edwardfiiiq March .23 1926.

E. CRAIG AUTOIATICALLY CONTROLLED FASTENER FORMING AND DRIVING IACHINE v0:11am Filed August 23-, 1920 7 u an, 5

March 23,1926. 1,578,015

E. CRAIG AUTOMATICALLY CONTROLLED F ASTENER FORMING AND DRIVING MACHINEOriginal; Filed August 23 1920 Tsheets sh fi 6 Patented Mar. 23, 1926. v

UNITED STATES 21,578,015- PATENT'OFFICE.

EDWARD CRAIG, OF ST. JOSEPH, MICHIGAN.

AUTOMATICALLY-CONTROLLED FASTENER FORMING AND DRIVING MACHINE.

Application filed August 23, 1920, Serial Il'o. 405,174. Renewed August21, 1925.

. To all whom it may cancern:

.Be it known that I, EDWARD CRAIG, a citizen of the United States ofAmerica, and a resident of St. Joseph, Michigan, have invented a certainnew and useful Improvement in Automatically-Controlled Fastener Formingand Driving Machines, of which the following is a specification.

This invention relates to stapling machines for securing materialstogether, and

- more particularly to machines for stapling a set of upper strips to aset of lower strips, thereby to form a rectangular structure which canbe used for various purposes, such as the supporting of stoves on thefloor, the flat rectangular structure being ordinarily covered with zincfor this purpose, or with any other suitable sheet material.

1 The object of the invention is to provide a machine in. which thefastener driving To these and other useful ends the invention consistsin matters hereinafter set forth in g drawings,

and claimed, and shown in the accompanyin which- Fig. 1 is a sideelevation of a machine embodying the principles of the invention,showing one end of the machine broken away for convenience ofillustration.

Fig. 2 is a perspective of the rectangular structure which constitutesthe product of said machine, formed by fastening an upper set of stripscrosswise of a lower set of Strips, by the insertion of staples in themanner explained.

Fig. 3 is a plan of the structure shown in Fig. 1. 1.

Fig. 4 is an enlarged section on line H in Fig. 3.

Fig. 5 is a similar section on line 5-5 in Fig. 3.

Fig. 6 is an enlarged detail section on line 6-6 in Fig. 3. 4

Fig. 7 is an enlarged detail section on line 77 in Fig. 3, showing thewire feeding mechanism in one position. which is the op erativecondition'for feeding the wire.

F 1g. 8 is a similar view showing the parts in the position which theyassume to render the mechanism inoperative to feed the wire. Flg. 9 is asection on line 9 9 in Fig. 7.

r. Fig. 10 is a section on line 10-'10 in .Fig.

Fig. 11 is a Fig. 7.

Fig. 12 is a Fig. 8.

Fig. 13 is an enlarged detail section on line 13l3 in Fig. 5.

Fig.1; is a perspective of one of thesecentric cams with which the wirefeeding mechanism is provided for the control thereof, to stop thefeeding of the wire to certain section on line 11- 1 1:in

section on line 1212 in ofsaid staplers, when it is desired to drive thetwo longitudinal rows of staples in the materials.

As thus illustrated, the invention comprises a base 1 upon which aremounted the two upright side frames 2, the latter being suitablyconnected together by a cross bar 3, and by an upper bar 4, upon whichthe usual or any ordinary or suitable staplers 5 are mounted to drivestaples into the as sembled materials. The. machine is provided with.longitudinal guides 6 for the endless sprocket chains 7 which constitutethe means for propelling the materials along, in a step by step manner,therebyto feed the materials in assembled relation below the staplers. Ashaft 8 is'provided at the discharge end of the machine, upon whichsprockets 9 are mounted to support the said endless chain belts whichform the work feeding means. It will be understood that the receivingend of the machine is pro Fig 2, are placed by hand on the two parallelsprocket belts 7 and are propelled along the guides 10 by the transversepusher bars 11.which are secured to the two sprocket belts, each barengaging the rear edge 12 of one of the rectangular structures or blanksforming the product of the machine. The said staplers are. so controlledthat the transverse row of staples 13 is driven first, by the driven bythe transverse shaft 19 mounted simultaneous action of the staplers, andso that the longitudinal rows of staples 14 are then driven next, by thesuccessive operation of the twoouter or end staplers. Finally, ofcourse, the transverse row of staples 15 is driven by the simultaneousaction of all the staplers, the four rows of staples thus driven forminga rectangle along the four edges of the rectangular structure formed bythus securing the strips of veneer or other materials together. Arectangular structure of this kind can be used for any suitable ordesired purpose, but in the present instancev it is intended for use insupporting stoves on the fioor. These rectangular" stapled structuresthus formed are usually covered with zinc or other sheet material, andthen placed on the floor to support the legs or base of a stove, in thewell known manner. By fastening the upper set of strips crosswise of thelower set of strips, in the manner shown, a compound structure is formedwhich is not liable to warp and which will lie fiat on the floor.

It will be understood that the staplers are operated in the usual or anysuitable manner, as by pitman 16 connected to the upper cross head 17and operated at their lower ends by the eccentric cams 18 which are insuitable hearings on' the body frame. The said shaft is provided with aneccentric cam device 20 which is connected by pitman 21 with the arm 22which swings on the shaft 8 and this arm is provided with a ratchet dog23 for engaging the ratchet. wheel 24, which is keyed to the shaft 8 tointermittently rotate the latter through the medium of the rigid feedconnection thus provided, thereby tointermittently advance the workbelow the staplers. The shaft 19 is preferably driven from the shaft 25through the medium of a gear connection 26 of, any suitable or desiredcharacter, the shaft 25 having a pulley 27 at one end thereof to receivepower from any suitable source.

The wire from which the staples are made is fed to the staplers by wirefeeding mechanism as follows: A lower feed roll 28 and an upper feedroll 29 are provided for each stapler, and suitably supported inposition to feed the wire 30 between them to a tube 31 which leads tothe stapler. This tube 31 is removably held against the head 32 of ascrew 33 inserted in the support 34 on which the feed rolls are mounted,there being a plurality of these supports, as shown in Fig. 3. For thispurpose, the support 34 is preferabl provided with a retaining member int e form of an L-shaped rod 35 which is screwed into the sup-port 34 andarranged in position to be swung around against the tube 31 to hold thelatter against the head of said bolt or screw, as shown inore clearly"in Figs. and'll, whereby the vwill hereinafter more fully appear.

This ratchet feed device for in-1 known or approved character, on theshaft 19, whereby the shaft 36, and all of the feed rolls 28 thereon,are actuated intermittently to feed the wires to their respectivestaplers, in the desired manner. It will beunderstood that the saidwires 30 can be fed to their respective feed rolls from reels 42suitably supported over the machine. It will also be understood that theoperations or movements of the different parts are so timed that thestaples are driven while the work-feeding means is stationary, or whilethe materials themselves are stationary, and that the wire for thestaples is fed just before the downward stroke of the staplers, so thatsuitable lengths of wire will be cut off in the ordinary or well knownmanner to form the staples which are then driven by the final downwardmovement of the staplers.

t The device whereby the staplers are automatically caused to drive therow of staone of the side frames 2 of the main body frame. A ratchet dog49 is carried by the pivot pin 50' of the arm 22, and is arranged toengage the ratchet wheel 43, so that the latter will be intermittentlyrotated by the reciprocation of the pitman 21 previously mentioned. Acam plate 51 is loosely mounted on the shaft 8 between the arm 22 andthe ratchet wheel 43. and isprovided with a notch 52 in one. edgethereof to allow the ratchet dog 49 to operativcly eugage the teeth ofthe ratchet wheel 43, as Said cam plate 51 is connected by a link 53with the lower end of an arm 54, which latter is suitably mounted on therock shaft 55 which extends transversely of the machine, and n hich'issuitably supported in bearings on the body frame. Said rock shaft 55 hasanother arm 56 which is subject to the downward pull of a coil spring57, so that said p s' ed t r tat he P e m a .1

rection to raise the ratchet dog 49 out of the notch 52 and out ofengagement with the teeth of the ratchet wheel 43, so that the said dogis thereby rendered inoperative to actuate the said ratchet wheel. Theshaft also has a short crank arm 58 which is connected by a-verticallydisposed link 59 with the free end of the vertically swinging controller60, which latter is pivoted on the transverse shaft 61 to swing up anddown about a transverse axis. This controller, it will be seen, has adepressed portion 62 which forms a sort of cam for engagement with thecam block 63 mounted on the transverse pusher bar 11 previouslydescribed, it being understood that each of said pusher bars is providedwith one of these cam blocks at a point near the middle of the pathof-travel ofthe materials to be fastened together. The arm 47 isconnected by a vertically disposed link 64 with the arm 65, which latteris rigidly secured to the transversely arranged shaft 66, which latteris preferably square in cross section,

as shown. Each upper feed roll 29 is subject to control or up and downadjustment by the arm 67, and for each of said arms (37 there is a camarm 68 mounted on the said'shaft 66, as shown more clearly in Figs; 7and 8, and each arm 67 is preferably connected by a spring 69 with ahook 70 which is removably hooked over the transverse bar or roundmember 71 in the manner shown; each hook 70 having .a handle 72 by whichit can be manually disconnected from the bar 71 when it-is desired tothrow the stapler out of actionthat is to say, when it is desired tothrow the wire feeding device allotted to any hook out of action aridinto an inoperative position. Each arm 67, as shown more clearly in Fig.14, is provided with a cylindric.portion 73 which is pivoted in thesupport 34, as shown in Fig. 9, and which is provided with aneccentrically located axle 74 for the feed roll 29 previously mentioned.With. this arrangementit is obvious that any up and down movement of thearm 67 will result in sufficient up and down movement" of the feed roll29' to control the operation of the two feed rolls, for when the roll 29is lifted by the downward movement of the arm .67, as shown in Fig. 8,the wire. 30 is then released by the feed roll 29, so that; no feedingaction takes place; but whenthe roll 29 is lowered into engagement withthe wire, by upward movement of thearm67, as shown in Fig. 7, the wireis then gripped tightly between the two rolls and is caused to feedforward into the tube 31 in ,the desired manner. The cam wheel 45 isprovided with notches 7 5, and when the roller 46 in one of thesenotches all of the staplers are operative to drive staples, be- Causeunder such conditions all at the wire feeding devices, or the entirewire feeding mechanism, is operated to feed all the wiressin'iultaneously to. their allotted or respective staplers; but when theroller 46 is pushed upward and caused to engage one of the high placesbetween any two notches 75, as shown in Fig. 5, it is obvious that theshaft 66 is thereby rocked into the -position shown in Fig. 8, causingall of the arms 68 to swing downward against the arms 67, thus liftingthe upper feed rolls 29 of all of the staplers except the two end 'orouter staplers of the gang or row which extends transversely across themachine.

Thus, while the staples 13 are being driven simultaneously, the shaft 66is in the position shown in Fig; 7, because the roller 46 is in oneofthe notches 75, and all of the staplers of the row or gang areoperative to drive staples; but while the staples 14: are being drivensuccessively, in the manner explained, the shaft (36 is in the positionshown in Fig. 8, so that the arms (58 are down against the arms 67, andall of the feed rolls 29 which are thus mounted on 00- ccntricallylocated axles 74 are in raised position, so that they do not engage thewires 30, and consequently there is no wire feeding action at such timefor any of the wire feeding rolls ex ept those allotted to the end orouter staplers, which latter are the ones which drive the staples 14;and then when the time arrives to drive the staples 15, the roller 46 isagain in one of the notches 75, so that the arms 68 are all in theraised position shown in Fig. 7, and consequently all of the wirefeeding rolls for all of the staplers are operative to feed the wireswhich arenecessar'y for the formation of the staples 15, which latterare then driven simultaneously in a row transversely of the forwardpathof travel of the mate rials forming the work. It will be understood, ofcourse, that for this purpose, and in order to accomplish thestatedgmode of operation, the portions 62 and (iii-previously mentionedare arranged in the proper or required relation to each other, sothatthe wire feeding devices are automatically con.- trolled or governed inthe manner stated to render all of the stapiers operative when thestaples 13 are to be driven and to render the intermediate staplersinoperative to drive staples while the two end or outer staplers aredriving the staples 14, and to then again render the said intern'iediatestaplers operative when thetime arrives to drive the staples 15 at therear edge of-the" rectangular blank or structure formed by thus drivingstaples in four rows which form a rectangle around the edge of the retangular structure forming the product, of the machine.

The portion 62 rides on the top of the ma terials, ofcourse, and isofya-length to produce the desired result, and the described mode ofoperation. The shoes 76 also ride on the top of the materials, to holdthe latter down just in advance of the point where they pass under thestaplers, and are. connected together by a transverse bar 77 whichstood, drops into the notch 52, it is then free to actuate the ratchetwheel 43, thereby to turn the cam wheel 45 at the proper time, so thatthe arm 47 will be actuated up and down in the. manner necessary toproperly control the feeding of the wires from which the staples aremade, in the manner previously des ribed. Thus the controller 60 restsor floats on the forwardly moving materials, or extends close to theupper surface of the materials, and is adapted to be engaged by the camblocks 63 disposed at intervals along the. endless traveling workholders formed by the sprocket chains 7, whereby the action of'thestaplers is antomatically controlled by means which are in turncontrolled by the forward feeding motion of the said intermittentlyoperated traveling work-holder, or by the work feeding means, so that bythe forward feeding of the materials in a horizontal plane, the actionof the said staplers is controlled or governed to cause the driving ofthe staples 13 first, the driving of the staples 14 next, and thedriving of the staples 15 last, in the manner shown and described. Aspring 7 9 is preferably provided to yielding hold the arm 47 down, sothat the automatic control exerted by said arm over the wire feedingdevices will be rendered certain. Of ourse, if it be desired to controlthe wire feeding action at will, for an desired purpose, this can beaccomplishe as previously explained, by unhooking the hooks from thetransverse member 71, thus allowing the arm 67 to swing downward tocontrol the upper feed rolls of any of the wire feeding devices which itis desired to thus render inoperative. The said springs 69 tend to raisethe arm 67 and thus maintain the feed rolls in operative condition.

It willbe seen that the support 34 is supported by the rotary transverseshafts 36 and 66 and by the stationary shaft-like member 71, a set screw81 being inserted through the end of the support 34 to hold the sameagainst lateral displacement, and set screws are inserted'through thearms 62 to hold them against displacement from the cylindric portions 73previously described. Thus each wire feeding device is supported by abracket-like support 34- which is in turn supported by two rotary shaftsand one nonrotary or stationary shaft-like cylindric .7 and the elements62 and 63 are all so timed in their action that the staples 15 aredriven in one blank, and the staples 13 in the blank immediately in rearthereof, when the cam 63 strikes the depressed portion 62 of thecontroller, and while the controller remains in raised position, butthedriving of the'staples 13 is immediately fol- 80 lowed by the automaticcontrol of the Wire 1 feeding devices to drive the staples 14, as thenext actuation of the dog 49 brings they roller to 46 up into theposition shown his. Fig. 5; and, when the cam block 63 escapesia frombelow the portion 62 of the controller, the dog 49 is thrown out ofengagement with Y the ratchet 43, thus allowing the wheel 45 to remainstationary during several actuations of the staplers 5 and the workfeeding belts '7, thereby to ensure the desiredmode of operation. 'ForeXample,when the cam 63 strikes the portion 62, and while the controllerremains in raised position, the" roller 46 first drops into a notch 75,and the staples 15 are driven; then the actuation of the ratchet 43raises the roller 46 into the position shown in Fig. 5, and during thistime the staplers make twoor more strokes while the bar 11 is passingunder them; then the actuation of the ratchet 43 causes the roller todrop into another notch 75, and the staples 13 of the next blank aredriven; and then the actuation of the ratchet 43 again raises the roller46, causing the stapies 14 to be driven, and during this time Q thecontroller 60 is in lowered position, asj the cam 63 has passed out fromunder the, portion 62, so that the wheel 45 remains sta-t tionary withthe roller 46 on the edge of the} next notch 75 while the staples 14 arebeing driven, and until the next cam 63 againraises the controller torender the dog 49- operative to rotate the wheel 45, as described. It isobvious, however, that the au tomatic control over the staplers may bechanged or varied to meet the requirements of different kinds of work,and in accordance wit-h the distance between the rows of staples 13 and15, or for other reasons, without departing from the spirit of theinvention.

It will be seen that the rotary mechanism comprising the cam wheel 45 issubject to intermittent rotation by the feeding motion of the meanswhich feed the work in the manner explained. This rotary governingmechanism is in turn controlled by the con troller 60- previouslydescribed, so that the necessary control is automatically exercised overthe stapling mechanism'to thereby automatically control the actionthereof on the work. The controller 60 is mounted to move up and down,and is engaged and released by the engaging means 63 on the work feeding means, so that the wire feeding means and the stapling mechanism aresubject to automatic control by the forward feeding motion of the workfeeding means and work.

The longitudinally disposed member 60, as shown in Fig. 5, serves asmeans to form Y a controller for the staple wire feeding devices, andthis controller co-operates with the ratchet feed mechanism" 23 and 24.by which the feed belts 7 are operated, to automatically control theaction of the machine on the work. In other words, the controller.-

60 is not operative by itself to control the action of the machine onthe work, foi while this member 60is actuated by the forward feedinmotion of the work feeding means,

nevertheless it is true that the automatic control over the wire feedingdevices is exercised conjointly by this member 60 and the ratchetmechanism 43 and 49, which mechanism is operated by the ratchet 23 and24 previously mentioned, inasmuch as the ratchet belt 23 is actuated bythe pitman 21 which is reciprocated by the eccentric device 20previously mentioned. In this way,

therefore, the feeding motion employed to feed the work under thestapling mechanism is operative at two points to automatically controlthe action of the stapling mechanism on the work. In other words, thefeeding motion employed to feed the work is operative where the.elements 63 strikethe member 60, and is also operative through theratchet feed mechanism and through the roller 46, to automaticallycont-r01 the feeding of the wire from which the staples are made,thereby to automatically control the action of the stapling mechanism onthe.v

by hand, as shown and described, is aide-- sirable feature oi theinvention, and improved instrumentalities are, therefore, shown anddescribed, for controlling the stapling action inaccordance with therequirements of the work passing under the staplers. a w

Inasmuch as the feed roll mechanism for feedin the wire for'the staplesis operated intermittently without interruption, by con-' wire.

stant intermittent rotation of the rolls on each device, it is obviousthat the machine can be operated with considerable speed,

without interfering with the proper feeding of the wire for the staples,for the intermittent rotation of the feed rolls causes intermittentfeeding motion on the part of the This intermittent feeding action,however, of the wire for the staples, is automatically controlfed by themovement of one roll toward and away from the other, withoutinterrupting the intermittent rotation of the rolls, in the manner shownand described, so that the intermittent feeding of the wire isautomatically stopped when the insertion of staples at any desired orpredetermined point or points in the work passing under the staplers.Preferably, as sl'iown, the mechanism for moving one roll toward andaway from the other is automatically controlled by the forward feedingit is necessary or desirable" to'discontinue,

motion of the work feeding means by which the work is given anintermittent forward feeding motion below the staplers.

\Vhat I claim as my invention is 1. In a machine for securing materialstogether, the combination of mechanism for performing successiveoperations on the materials to fasten them together, instrumentalitiesfor maintaining the materials in properly assembled re'ation and forfeeding the same relatively to said mechanism, -so

that said materials are presented to said mechanism for the necessaryoperations thereon, devices for causing said mechanism to first drive atransverse row of fasteners and to then drive two longitudinal rows andfinally a transverse row of fasteners in the assembled materials, thefour rows formmg a rectangle, and a controller actuated in accordancewith the forward feeding motion of the materials to automatically governthe action of said devices.

2. .A structure as specified in claim 1, said mechanism having means forsimultaneously driving all of the fasteners in each transverse row. v

3. A structure as specified in claim 1, said mechanism comprisinga rowof staplers and means to actuate the staplers simultaner ously, and saiddevices comprising means to.

feed 'wire to said staplers.

4. Astructure as specified in claim 1, said instrumentalities comprisingmeans to hold a plurality of lower strips in a horizontal plane with aplurality of upper strips imposed thereon, the upper-r strips extendingtransversely of the lower strips thereby to form a rectangular structurewith the four edges thereof extending along the four sides of. therectangle formed by said rows of fasteners. f

5. A structure as specified in claim 1, said controller being disposedin. position over aplane below said shafts and member, a

lower fee-d roll on said rotary shaft, a bracket-like support mounted onsaid shafts and member, an upper feed roll on said support, a stapler toreceive the wire from said rolls, disposed above said plane, means onsaid rock shaft to control said upper feed roll, and means to turn therock shaft to .control the feeding of the wire to control the action ofthe stapler on the saidarticles. '7. A structure as specified in claim6, 1D

' combination with means detachably enga ing said shaft-like member tocontrol t e upper feed roll.

8. A structure as specified in claim 1, said instrumentalities includingan endless travel ing means having elements at intervals thereon toengage and actuate said con troller.

9. A structure as specified in claim 1, said devices comprising rollsfor feeding wire to said mechanism, means including a rock shaft tocontrol the action of said rolls, r0- tary means to operate said rockshaft, a ratchet to operate said rotary means, and means operated bysaid controller to govern the action of said ratchet, thereby toautomatically control the action of said mechanism on the work.

10. A structure as specified in claim 1, said devices comprising meansto feed wire to said mechanism, and means operated by said controller togovern the action of said wire feeding means.

11. In a stapling machine for fastening materials together, thecombination of a workfeeding means, a stapling mechanism to insertstaples in the work, means forming a controller, elements disposed atintervals on said work feeding means to engage said controller, wirefeeding devices to feed wire to said mechanism, means including amovable element to control the action of said devices, rotary means tooperate said movable element, a ratchet to actuate said rotary means,and means operated by said controller to govern the action of saidratchet and control the action of the machine on the work.

- 12. A structure as specified in claim 11, said wire feeding devicesincluding upper and lower rolls, the upper roll being mov- 13. Astructure as specified in claim 11,

said rotary means including a wheel with cam notches therein. I

14. A structure as specified in claim 11, said controller being pivotedto swing up and down above the work.

15. In a stapling machine for securing materials together, a tubeforming a guide for the wire from which the staples are made, meansoperated by said machine to feed wire into said tube, a screw having itshead shaped to form a seat for the side of said tube, a support in whichsaid screw is adjustably supported. and a retainer for removably holdingthe tube against said head.

16. A structure as specified in claim 15, said retainer comprising a rodscrewed into said' support and bent to engage the tube.

17. In a stapling machine for making articlesrequiring cessation ofstaple driving at different points in the feeding plane the'reof,

a lower feed roll, an upper feed roll, an eccentric device for raisingand lowering the upper feed roll to control the feeding action of thewire between the two rolls, means to feed the said articles ina placebelow said rolls, a stapler to receive the wire from said rolls,disposed above said plane, and means to control said eccentric device tocontrol the action of the stapler on the said articles actuated by thework feeding means.

18. In a stapling machine for making articles requiring cessation ofstaple driving at different points in the feeding plane thereof, thecombination of feed rolls to feed wire to said stapling machine, aneccentric device for controlling one roll to govern the feeding actionof the rolls,means to feed said articles under the stapling means, andmeans actuated by the work feeding means to automatically control saideccentric device to control the stapling action on thesaid articles.

19. In a stapling machine for making articles requiring cessation ofstaple driving at different points in the feeding plane thereof, thecombination of a rotary shaft, a shaft-like stationary member arrangedparallel withsaid shaft, a bracket-like member supported on saidstationary member and'shaft,-a feed roll on said shaft, a feed roll onsaid support, the two rolls cooperat ing to feed wire to said staplingmachine, means to feed said articles under the stapling means, and meansactuated b the work feeding means for controlling the operation of saidshaft, thereby to control the stapling action on the work.

20. A structure as specified in claim 19, said bracket-like supportbeing adjustable laterally on said shaft and member.

21. In a stapling machine, the combination of work feeding means, agroup of staplers whereby to drive some staples simultaneously and otherstaples successively, and 'controlling means governed in accordance withthe feeding motion of the work to cause operation of all the staplersfor the simultaneously driven staples and operation of only certainstaplers for the successively driven staples.

22. A structure as specified in claim'21, said staplers being arrangedand controlled to insert the simultaneously driven staples in transverserows and the successively driven staples in longitudinal rows.

23. In a stapling machine, means for feeding the work, stapler mechanismto perform the necessary operation on the work, wire feeding devices tofeed wire to said mechanism for the making of the staples, means toautomatically operate said devices by the operation of 'said machine,rotary mechanism to automatically govern the operation of said wirefeeding devices, thereby to control the action of the machine on thework, means forming a controller for said rotary governing mechanism,means to automatically actuate said controller in accordance with theforward feeding motion of the work, and instrumentalitiesto operate saidwork feeding means and said stapler mechanism to cause the desiredaction on the work. 24. A structure as specified in claim 23, saidrotary governing mechanism comprising a rotary cam wheel and meansoperated by the feeding motion of the work feeding means tointermittently rotate said-cam.

25. A structure as specified in claim 23, said rotary governingmechanism being subject to intermittent rotation Ly the feeding motionof the work feeding means.

26. A structureas specified in claim 23,

said rotary inechanism comprising a ratchet operated by the feedingmotion .of the work feeding means.

27. A structure as specified in claim 23, said controller bein mountedto move up and dewn to exercise the desired control over said rotarygoverning mechanism.

28. In a work stapling machine, the com.- bination of work feedingmeans, staple driving mechanism, a controller, means on said workfeedingwmeans to engage said controller, means whereby said controlleris mounted to move up and down when engaged and released by saidengagin' means, and instrumentalitiesactuated by t e work feeding motionand governed automatically by said controller to automatically controlthe action of said staple driving mechanism on the work.

29. In a stapling machine, thecombina I tionof work feeding means,stapling mecha+ nism to operate upon the work, wire feedrolls, andinstrumentalities actuated 'in accordance with the feeding motion of thework to automatically actuate said eccentric devlce, thereby toautomatically control the action 'of the stapling mechanism on the work.

30. A structure as specified in claim 29, said eccentric device havingmeans including a springto maintain therolls in feeding relation, saidspring being connected'in po' sition to yield whensaid eccentricdeviceis actuated to cause separation of said rolls to stop the feedingof the wire.

31. A structure as specified in claim 29, said eccentric device havingmeans for manually causing separation of the two rolls.

32. A structure as specified in claim 29,

said eccentric device having an arm, and I means for normally holdingsaid arm in position to maintain the two rolls in feeding relation toeach other, said means for-automatically actuating saideccentric devicecomprising a rock shaft, .means for auto-- matically operating said rockshaft and an arm on said rock shaft. to engage said eccentric arm,thereby to cause separation of the two rolls.

33. In a stapling machine, a stapler, work feeding mechanism for feedingwork beneath the stapler, rotary driven feed rolls for feeding wire tothe stapler, mechanism for moving one .roll toward and away from theother without stopping the rotary motion whereby to govern theintermittent feeding of the wire, and instrumentalities actuated by saidwork feeding; mechanism to automatically control said last namedmechanism.

34. In a stapling feeding mechanism for feeding work beneath thestapler, rotary driven feed roll mechanism to feed wire to the stapleradaptmachine, a stapler, work Y ed by rotation to feed wireintermittently,

